Obsolete Product(s) - Obsolete Product(s)
ELECTRICAL CHARACTERISTICS
(Refer to the test circuit, V
S
= 21V, R
L
= 8
Ω
; R
g
= 50
Ω
; T
amb
= 25°C; unless otherwise specified.)
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
S
Supply Voltage Range 11 35 V
I
q
Total Quiescent Current 22 50 mA
DCV
OS
Output DC Offset Referred to
SVR Potential
No Input Signal -550 550 mV
V
O
Quiescent Output Voltage V
S
= 18V 7.8 9 10.2 V
V
S
= 21V 10 10.5 11 V
P
O
Output Power THD = 10%; V
CC
= 28V, R
L
= 8Ω
THD = 1%; V
CC
= 28V
8
6
10
8
W
THD = 10%; V
CC
= 21V,
THD = 1%; V
CC
= 21V,
5
3.5
5.5
4
W
THD = 10%; V
CC
= 21V, R
L
= 4Ω
THD = 1%; V
CC
= 21V,
5
3.9
6.6
5.5
W
THD = 10%; V
CC
= 18V,
THD = 1%; V
CC
= 18V
4.5
3.5
6
4.5
W
THD = 10%; V
CC
= 18V, R
L
= 8Ω
THD = 1%; V
CC
= 18V
3.5
2.2
3.75
2.85
W
W
THD Total Harmonic Distortion P
O
= 1W; f = 1KHz; Gv = 26dB 0.4 %
I
peak
Output Peak Current (internally limited) 1.4 1.9 A
T
op
Operating Temperature 0 70 °C
V
in
Input Signal 2.8 Vrms
G
V
Closed Loop Gain 24.5 26 27.5 dB
BW 0.6 MHz
e
N
Total Output Noise f = 20Hz to 22KHz
Play
30 50 µV
f = 20Hz to 22KHz
Mute
30 50 µV
SR Slew Rate 5 8 V/µs
R
i
Input Resistance 22.5 30 KΩ
SVR Supply Voltage Rejection f = 1kHz;
C
SVR
= 470µA; V
RIP
= 1V
RMS
36 43 dB
T
M
Thermal Muting 150 °C
T
s
Thermal Shut-down 160 °C
V
ST-BY
Stand-by threshold 2.3 2.5 2.7 V
V
MUTE
Mute Threshold 2.3 2.5 2.7 V
I
qST-BY
Quiescent Current @ Stand-by 0.6 1 mA
A
MUTE
Mute Attenuation 60 75 dB
I
stbyBIAS
Stand-by bias current Stand by on; V
ST-BY
= 5V;
V
MUTE
= 5V;
80 150 µA
Play or Mute 2 20 µA
I
muteBIAS
Mute bias current Mute 1.5 10 µA
Play 0.5 5 µA
TDA7494S
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